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using LinearAlgebra, ReverseDiff
n = 30
D = Diagonal([0.1 + 0.9 * (i - 1) / (n - 1) for i = 1:n])
F = x -> sqrt.(D) * (x .- 1)
x = ones(n)
ReverseDiff.gradient(x -> dot(F(x), x), x)
and got the following error
ERROR: MethodError: *(::Diagonal{Float64, Vector{Float64}}, ::ReverseDiff.TrackedArray{Float64, Float64, 1, Vector{Float64}, Vector{Float64}}) is ambiguous. Candidates:
*(x::AbstractMatrix, y::ReverseDiff.TrackedArray{V, D, 1}) where {V, D} in ReverseDiff at .julia\packages\ReverseDiff\YkVxM\src\derivatives\linalg\arithmetic.jl:214
*(x::AbstractArray, y::ReverseDiff.TrackedArray{V, D, 1}) where {V, D} in ReverseDiff at .julia\packages\ReverseDiff\YkVxM\src\derivatives\linalg\arithmetic.jl:214
*(x::AbstractMatrix, y::ReverseDiff.TrackedArray{V, D}) where {V, D} in ReverseDiff at .julia\packages\ReverseDiff\YkVxM\src\derivatives\linalg\arithmetic.jl:214
*(x::AbstractArray, y::ReverseDiff.TrackedArray{V, D}) where {V, D} in ReverseDiff at .julia\packages\ReverseDiff\YkVxM\src\derivatives\linalg\arithmetic.jl:214
*(D::Diagonal, V::AbstractVector) in LinearAlgebra at julia-1.8.0\share\julia\stdlib\v1.8\LinearAlgebra\src\diagonal.jl:242
Possible fix, define
*(::Diagonal, ::ReverseDiff.TrackedArray{V, D, 1}) where {V, D}
Stacktrace:
[1] (::var"#3#4")(x::ReverseDiff.TrackedArray{Float64, Float64, 1, Vector{Float64}, Vector{Float64}})
@ Main .\REPL[6]:1
[2] (::var"#7#8")(x::ReverseDiff.TrackedArray{Float64, Float64, 1, Vector{Float64}, Vector{Float64}})
@ Main .\REPL[9]:1
[3] ReverseDiff.GradientTape(f::var"#7#8", input::Vector{Float64}, cfg::ReverseDiff.GradientConfig{ReverseDiff.TrackedArray{Float64, Float64, 1, Vector{Float64}, Vector{Float64}}})
@ ReverseDiff .julia\packages\ReverseDiff\YkVxM\src\api\tape.jl:199
[4] gradient(f::Function, input::Vector{Float64}, cfg::ReverseDiff.GradientConfig{ReverseDiff.TrackedArray{Float64, Float64, 1, Vector{Float64}, Vector{Float64}}}) (repeats 2 times)
@ ReverseDiff .julia\packages\ReverseDiff\YkVxM\src\api\gradients.jl:22
[5] top-level scope
@ REPL[9]:1
The text was updated successfully, but these errors were encountered:
I got the following error when using
ReverseDiff
and got the following error
The text was updated successfully, but these errors were encountered: